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[tor-commits] [ooni-probe/master] Add to setup.py support for installing the updater



commit 21cf4b8525e911e89ee5c567ae5d375f88fda767
Author: Arturo Filastò <arturo@xxxxxxxxxxx>
Date:   Mon Sep 5 16:36:13 2016 +0200

    Add to setup.py support for installing the updater
---
 MANIFEST.in                             |   5 +-
 data/configs/lepidopter-ooniprobe.conf  |  75 -------
 data/configs/lepidopter-oonireport.conf |  69 -------
 data/updater.py                         | 350 ++++++++++++++++++++++++++++++++
 setup.py                                |  26 ++-
 5 files changed, 375 insertions(+), 150 deletions(-)

diff --git a/MANIFEST.in b/MANIFEST.in
index 60d2ef9..0528d4b 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -6,7 +6,8 @@ include data/ooniprobe.1
 include data/oonireport.1
 include data/ooniresources.1
 include data/ooniprobe.conf.sample
-include data/configs/lepidopter-ooniprobe.conf
-include data/configs/lepidopter-oonireport.conf
+
+include data/updater.py
+
 include ooni/settings.ini
 include ooni/ui/consent-form.md
diff --git a/data/configs/lepidopter-ooniprobe.conf b/data/configs/lepidopter-ooniprobe.conf
deleted file mode 100644
index 5c8ba40..0000000
--- a/data/configs/lepidopter-ooniprobe.conf
+++ /dev/null
@@ -1,75 +0,0 @@
-# This is the configuration file for OONIProbe
-# This file follows the YAML markup format: http://yaml.org/spec/1.2/spec.html
-# Keep in mind that indentation matters.
-
-basic:
-    # Where OONIProbe should be writing it's log file
-    logfile: /var/log/ooni/ooniprobe.log
-    # in the future we will support loglevels
-    loglevel: WARNING
-privacy:
-    # Should we include the IP address of the probe in the report?
-    includeip: false
-    # Should we include the ASN of the probe in the report?
-    includeasn: true
-    # Should we include the country as reported by GeoIP in the report?
-    includecountry: true
-    # Should we include the city as reported by GeoIP in the report?
-    includecity: false
-    # Should we collect a full packet capture on the client?
-    includepcap: false
-reports:
-    # Should we place a unique ID inside of every report
-    unique_id: true
-    # This is a prefix for each packet capture file (.pcap) per test:
-    pcap: null
-    collector: null
-advanced:
-    geoip_data_dir: /usr/share/GeoIP
-    debug: false
-    # enable if auto detection fails
-    #tor_binary: /usr/sbin/tor
-    #obfsproxy_binary: /usr/bin/obfsproxy 
-    # For auto detection
-    interface: auto
-    # Of specify a specific interface
-    #interface: wlan0
-    # If you do not specify start_tor, you will have to have Tor running and
-    # explicitly set the control port and SOCKS port
-    start_tor: true
-    # After how many seconds we should give up on a particular measurement
-    measurement_timeout: 120
-    # After how many retries we should give up on a measurement
-    measurement_retries: 2
-    # How many measurements to perform concurrently
-    measurement_concurrency: 4
-    # After how may seconds we should give up reporting
-    reporting_timeout: 360
-    # After how many retries to give up on reporting
-    reporting_retries: 5
-    # How many reports to perform concurrently
-    reporting_concurrency: 7
-    oonid_api_port: 8042
-    report_log_file: null
-    inputs_dir: null
-    decks_dir: null
-tor:
-    #socks_port: 8801
-    #control_port: 8802
-    # Specify the absolute path to the Tor bridges to use for testing
-    #bridges: bridges.list
-    # Specify path of the tor datadirectory.
-    # This should be set to something to avoid having Tor download each time
-    # the descriptors and consensus data.
-    data_dir: /opt/ooni/tor_data_dir
-torrc:
-    #HTTPProxy: host:port
-    #HTTPProxyAuthenticator: user:password
-    #HTTPSProxy: host:port
-    #HTTPSProxyAuthenticator: user:password
-    # Uncomment following 5 lines to connect via meek pluggable transport in tor
-    #UseBridges: 1
-    #Bridge:
-    #- "meek_lite 0.0.2.0:1 url=https://d2zfqthxsdq309.cloudfront.net/ front=a0.awsstatic.com"
-    #- "meek_lite 0.0.2.0:2 url=https://az786092.vo.msecnd.net/ front=ajax.aspnetcdn.com"
-    #ClientTransportPlugin: "meek_lite exec /usr/bin/obfs4proxy"
diff --git a/data/configs/lepidopter-oonireport.conf b/data/configs/lepidopter-oonireport.conf
deleted file mode 100644
index 8ea3ccc..0000000
--- a/data/configs/lepidopter-oonireport.conf
+++ /dev/null
@@ -1,69 +0,0 @@
-# This is the configuration file for OONIProbe
-# This file follows the YAML markup format: http://yaml.org/spec/1.2/spec.html
-# Keep in mind that indentation matters.
-
-basic:
-    # Where OONIProbe should be writing it's log file
-    logfile: /var/log/ooni/oonireport.log
-    # in the future we will support loglevels
-    loglevel: WARNING
-privacy:
-    # Should we include the IP address of the probe in the report?
-    includeip: false
-    # Should we include the ASN of the probe in the report?
-    includeasn: true
-    # Should we include the country as reported by GeoIP in the report?
-    includecountry: true
-    # Should we include the city as reported by GeoIP in the report?
-    includecity: false
-    # Should we collect a full packet capture on the client?
-    includepcap: false
-reports:
-    # Should we place a unique ID inside of every report
-    unique_id: true
-    # This is a prefix for each packet capture file (.pcap) per test:
-    pcap: null
-    collector: null
-advanced:
-    geoip_data_dir: /usr/share/GeoIP
-    debug: false
-    # enable if auto detection fails
-    #tor_binary: /usr/sbin/tor
-    #obfsproxy_binary: /usr/bin/obfsproxy 
-    # For auto detection
-    interface: auto
-    # Of specify a specific interface
-    #interface: wlan0
-    # If you do not specify start_tor, you will have to have Tor running and
-    # explicitly set the control port and SOCKS port
-    start_tor: false
-    # After how many seconds we should give up on a particular measurement
-    measurement_timeout: 120
-    # After how many retries we should give up on a measurement
-    measurement_retries: 2
-    # How many measurements to perform concurrently
-    measurement_concurrency: 4
-    # After how may seconds we should give up reporting
-    reporting_timeout: 360
-    # After how many retries to give up on reporting
-    reporting_retries: 5
-    # How many reports to perform concurrently
-    reporting_concurrency: 7
-    oonid_api_port: 8042
-    report_log_file: null
-    inputs_dir: null
-    decks_dir: null
-tor:
-    socks_port: 9050
-    #control_port: 8802
-    # Specify the absolute path to the Tor bridges to use for testing
-    #bridges: bridges.list
-    # Specify path of the tor datadirectory.
-    # This should be set to something to avoid having Tor download each time
-    # the descriptors and consensus data.
-    #data_dir: ~/.tor/
-    torrc:
-        #HTTPProxy: host:port
-        #HTTPProxyAuthenticator: user:password
-        #HTTPSProxy: host:port
-        #HTTPSProxyAuthenticator: user:password
diff --git a/data/updater.py b/data/updater.py
new file mode 100755
index 0000000..dc2fb2a
--- /dev/null
+++ b/data/updater.py
@@ -0,0 +1,350 @@
+#!/usr/bin/env python2
+
+from __future__ import print_function
+
+import os
+import re
+import imp # XPY3 this is deprecated in python3
+import time
+import errno
+import shutil
+import logging
+import tempfile
+import argparse
+
+from subprocess import check_output, check_call, CalledProcessError
+
+# UPDATE_BASE_URL/latest/version must return an integer containing the latest version number
+# UPDATE_BASE_URL/VERSION/update.py must return the update script for VERSION
+# UPDATE_BASE_URL/VERSION/update.py.asc must return a valid GPG signature for update.py
+UPDATE_BASE_URL = "https://github.com/OpenObservatory/lepidopter-update/releases/download/";
+
+CURRENT_VERSION_PATH = "/etc/lepidopter-update/version"
+UPDATER_PATH = "/opt/ooni/updater/versions/"
+SCRIPT_INSTALL_PATH = "/opt/ooni/updater/updater.py"
+
+SYSTEMD_SCRIPT_PATH = "/etc/systemd/system/lepidopter-updater.service"
+SYSTEMD_SCRIPT = """\
+[Unit]
+Description=lepidopter-updater service
+
+[Service]
+Type=simple
+ExecStart={0} --log-file /var/log/lepidopter-update.log update --watch
+TimeoutStartSec=300
+Restart=on-failure
+[Install]
+WantedBy=multi-user.target
+""".format(SCRIPT_INSTALL_PATH)
+
+PUBLIC_KEY_PATH = "/opt/ooni/updater/public.asc"
+PUBLIC_KEY = """\
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Comment: GPGTools - https://gpgtools.org
+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+sZ094LwkO8GRySB+LKm6KQtJ+WOnsvs3X8v8fSA6GwJjYdtKqNUzPBLpw8RrIH9l
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+VrcMyNlaft/aSOkojyjh3+2zF1PCfW1Nw9Sx50gdN3FfF0yEWjUoA1R/NW9CQZVG
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+HJwUSeLMhRvi4jTT+z5QLdYloFRZmDRwNg63csGZRkly9vjrAiMVHMpcJI0eCei/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+=RbWA
+-----END PGP PUBLIC KEY BLOCK-----
+"""
+
+
+class RequestFailed(Exception):
+    pass
+
+def get_request(url, follow_redirects=True):
+    cmd = ["curl", "-q"]
+    if follow_redirects is True:
+        cmd.append("-L")
+    cmd.append(url)
+
+    tmp_file = tempfile.TemporaryFile()
+
+    try:
+        check_call(cmd, stdout=tmp_file)
+    except CalledProcessError:
+        raise RequestFailed
+
+    tmp_file.seek(0)
+
+    return tmp_file.read()
+
+def get_current_version():
+    if not os.path.exists(CURRENT_VERSION_PATH):
+        return 0
+    with open(CURRENT_VERSION_PATH) as in_file:
+        version = in_file.read()
+    return int(version)
+
+def get_latest_version():
+    version = get_request(UPDATE_BASE_URL + "latest/version")
+    return int(version)
+
+class InvalidSignature(Exception):
+    pass
+
+class InvalidPublicKey(Exception):
+    pass
+
+
+def verify_file(signature_path, signer_pk_path):
+    tmp_dir = tempfile.mkdtemp()
+    tmp_key = os.path.join(tmp_dir, "signing-key.gpg")
+
+    try:
+        try:
+            check_call(["gpg", "--yes", "-o", tmp_key, "--dearmor", signer_pk_path])
+        except CalledProcessError:
+            raise InvalidPublicKey
+
+        try:
+            output = check_output(["gpg", "--status-fd", "1",
+                                   "--no-default-keyring", "--keyring",
+                                   tmp_key, "--trust-model", "always",
+                                   "--verify", signature_path])
+        except CalledProcessError:
+            raise InvalidSignature
+
+    except Exception as e:
+        raise e
+
+    finally:
+        shutil.rmtree(tmp_dir)
+
+    return output
+
+class UpdateFailed(Exception):
+    pass
+
+def perform_update(version, skip_verification=False):
+    try:
+        updater = get_request(UPDATE_BASE_URL + "{0}/update.py".format(version))
+        updater_path = os.path.join(UPDATER_PATH, "update-{0}.py".format(version))
+    except RequestFailed:
+        logging.error("Failed to download update file")
+        raise UpdateFailed
+
+    if skip_verification is not True:
+        try:
+            updater_sig = get_request(UPDATE_BASE_URL + "{0}/update.py.asc".format(version))
+            updater_sig_path = os.path.join(UPDATER_PATH, "update-{0}.py.asc".format(version))
+        except RequestFailed:
+            logging.error("Failed to download update file")
+            raise UpdateFailed
+
+    with open(updater_path, "w+") as out_file:
+        out_file.write(updater)
+
+    if skip_verification is not True:
+        with open(updater_sig_path, "w+") as out_file:
+            out_file.write(updater_sig)
+
+    if skip_verification is not True:
+        try:
+            verify_file(updater_sig_path, PUBLIC_KEY_PATH)
+        except InvalidSignature:
+            logging.error("Found an invalid signature. Bailing")
+            raise UpdateFailed
+
+    updater = imp.load_source('updater_{0}'.format(version),
+                              updater_path)
+
+    try:
+        logging.info("Running install script")
+        updater.run()
+    except Exception:
+        logging.error("Failed to run the version update script for version {0}".format(version))
+        raise UpdateFailed
+
+    current_version_dir = os.path.dirname(CURRENT_VERSION_PATH)
+    try:
+        os.makedirs(current_version_dir)
+    except OSError as ose:
+        if ose.errno != errno.EEXIST:
+            raise
+
+    # Update the current version number
+    with open(CURRENT_VERSION_PATH, "w+") as out_file:
+        out_file.write(str(version))
+
+def update_to_version(from_version, to_version, skip_verification=False):
+    versions = range(from_version + 1, to_version + 1)
+    for version in versions:
+        try:
+            perform_update(version, skip_verification)
+        except UpdateFailed:
+            logging.error("Failed to update to version {0}".format(version))
+            return
+
+def check_for_update(skip_verification=False):
+    logging.info("Checking for update")
+    current_version = get_current_version()
+    try:
+        latest_version = get_latest_version()
+    except RequestFailed:
+        logging.error("Failed to learn the latest version")
+        return
+
+    if current_version < latest_version:
+        logging.info("Updating {0}->{1}".format(current_version, latest_version))
+        update_to_version(current_version, latest_version, skip_verification)
+    else:
+        logging.info("Already up to date")
+
+class InvalidInterval(Exception):
+    pass
+
+def _get_interval(interval):
+    """
+    Returns the interval in seconds.
+    """
+    seconds = 0
+    INTERVAL_REGEXP = re.compile("(\d+d)?(\d+h)?(\d+m)?")
+    m = INTERVAL_REGEXP.match(interval)
+    days, hours, minutes = m.groups()
+
+    if days is not None:
+        seconds += int(days[:-1]) * 24 * 60 * 60
+    if hours is not None:
+        seconds += int(hours[:-1]) * 60 * 60
+    if minutes is not None:
+        seconds += int(minutes[:-1]) * 60
+
+    if seconds == 0:
+        try:
+            seconds = int(interval)
+        except ValueError:
+            raise InvalidInterval
+    return seconds
+
+
+def update(args):
+    """
+    This command fires the updater.
+    """
+    if args.watch is True:
+        seconds = _get_interval(args.interval)
+        while True:
+            check_for_update(skip_verification=args.skip_verification)
+            time.sleep(seconds)
+    else:
+        check_for_update(skip_verification=args.skip_verification)
+
+
+def install(args):
+    """
+    This command installs the updater.
+    """
+    directories = [
+        UPDATER_PATH,
+        os.path.dirname(CURRENT_VERSION_PATH)
+    ]
+    for path in directories:
+        try:
+            os.makedirs(path)
+        except OSError as ose:
+            if ose.errno != errno.EEXIST:
+                raise
+
+    with open(CURRENT_VERSION_PATH, "w") as out_file:
+        out_file.write("0")
+
+    # Copy myself over to the SCRIPT_INSTALL_PATH
+    shutil.copyfile(__file__, SCRIPT_INSTALL_PATH)
+    os.chmod(SCRIPT_INSTALL_PATH, int('744', 8))
+
+    with open(PUBLIC_KEY_PATH, "w") as out_file:
+        out_file.write(PUBLIC_KEY)
+    os.chmod(PUBLIC_KEY_PATH, int('644', 8))
+
+    with open(SYSTEMD_SCRIPT_PATH, "w") as out_file:
+        out_file.write(SYSTEMD_SCRIPT)
+
+    check_call(["systemctl", "enable", "lepidopter-updater"])
+    check_call(["systemctl", "start", "lepidopter-updater"])
+
+class InvalidLogLevel(Exception):
+    pass
+
+def _setup_logging(args):
+    log_file = args.log_file
+
+    try:
+        log_level = getattr(logging, args.log_level)
+    except AttributeError:
+        raise InvalidLogLevel()
+
+    logging.basicConfig(filename=log_file, level=log_level)
+
+def main():
+    parser = argparse.ArgumentParser(description="Auto-update system for lepidopter")
+    parser.add_argument('--log-file', help="Specify the path to the logfile")
+    parser.add_argument('--log-level', help="Specify the loglevel (CRITICAL, ERROR, WARNING, INFO, DEBUG)", default="INFO")
+
+    sub_parsers = parser.add_subparsers()
+
+    parser_update = sub_parsers.add_parser('update')
+    parser_update.add_argument('--watch',
+                               action='store_true',
+                               help="Keep watching for changes in version and automatically update when a new version is available")
+    parser_update.add_argument('--interval', default='6h')
+    parser_update.add_argument('--skip-verification',
+                               action='store_true',
+                               help="Skip key verification (DANGER USE ONLY FOR TESTING))")
+    parser_update.set_defaults(func=update)
+
+    parser_install = sub_parsers.add_parser('install')
+    parser_install.set_defaults(func=install)
+
+    args = parser.parse_args()
+    _setup_logging(args)
+    args.func(args)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/setup.py b/setup.py
index 4c0bcfe..c465789 100644
--- a/setup.py
+++ b/setup.py
@@ -95,6 +95,7 @@ from ConfigParser import SafeConfigParser
 from os.path import join as pj
 from setuptools import setup
 from setuptools.command.install import install as InstallCommand
+from subprocess import check_call
 
 from ooni import __version__, __author__
 
@@ -134,6 +135,18 @@ Topic :: System :: Networking :: Monitoring
 """
 
 
+def is_lepidopter():
+    return os.path.exists('/etc/default/lepidopter')
+
+
+def is_updater_installed():
+    return os.path.exists('/etc/lepidopter-update/version')
+
+
+def install_updater():
+    check_call(["data/updater.py", "install"])
+
+
 class OoniInstall(InstallCommand):
     def gen_config(self, share_path):
         config_file = pj(tempfile.mkdtemp(), "ooniprobe.conf.sample")
@@ -183,15 +196,20 @@ class OoniInstall(InstallCommand):
         prefix = os.path.abspath(self.prefix)
         self.set_data_files(prefix)
 
-    def post_install(self):
-        pass
-
     def run(self):
         self.pre_install()
         self.do_egg_install()
-        self.post_install()
+
 
 def setup_package():
+    if is_lepidopter() and not is_updater_installed():
+        print("Lepidopter now requires that ooniprobe is installed via the "
+              "updater")
+        print("Let me install the auto-updater for you and we shall use that "
+              "for updates in the future.")
+        install_updater()
+        return
+
     setup_requires = []
     install_requires = []
     dependency_links = []



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